期刊
ASIAN JOURNAL OF PSYCHIATRY
卷 61, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ajp.2021.102697
关键词
Opioid dependence; Neurocognitive performance; Cognitive impairment; Memory; Buprenorphine treatment
类别
This study aimed to assess the cognitive functions in participants maintained on buprenorphine for opioid dependence at peak and trough buprenorphine levels. The results indicated significant differences between peak and trough groups in the Wisconsin Card Sorting Test, suggesting that the time since buprenorphine dose has a significant impact on specific cognitive tasks in patients maintained on buprenorphine for opioid dependence.
Objectives: To assess the cognitive functions in participants maintained on buprenorphine for opioid dependence at peak and trough buprenorphine levels. Methods: This was a double-blind, randomized, experimental study. Sixty participants maintained on buprenorphine were matched for age and education and randomly allocated to peak group or trough group. The peak group received buprenorphine two hours before assessment, whereas the trough group received placebo. The cognitive domains of attention, learning and memory, and executive function including fluency, working memory, response inhibition and set shifting were tested. Results: The two groups were comparable on socio-demographic, substance use profile and opioid agonist treatment-related characteristics. Significant differences in performance of peak and trough group were observed on Wisconsin Card Sorting Test parameters of number of correct responses (U = 289.00, p = 0.03), number of errors (t = 02.26, df = 58, p = 0.03), and perseverative errors (U = 301.50, p = 0.04). Conclusions: The time since buprenorphine dose has significant relation on specific cognitive tasks in patients maintained on buprenorphine for opioid dependence.
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